1 /* 2 * Copyright (c) 1982 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)hp.c 6.8 (Berkeley) 06/08/85 7 */ 8 9 #ifdef HPDEBUG 10 int hpdebug; 11 #endif 12 #ifdef HPBDEBUG 13 int hpbdebug; 14 #endif 15 16 #include "hp.h" 17 #if NHP > 0 18 /* 19 * HP disk driver for RP0x+RMxx+ML11 20 * 21 * TODO: 22 * check RM80 skip sector handling when ECC's occur later 23 * check offset recovery handling 24 * see if DCLR and/or RELEASE set attention status 25 * print bits of mr && mr2 symbolically 26 */ 27 #include "../machine/pte.h" 28 29 #include "param.h" 30 #include "systm.h" 31 #include "dk.h" 32 #include "buf.h" 33 #include "conf.h" 34 #include "dir.h" 35 #include "user.h" 36 #include "map.h" 37 #include "../vax/mtpr.h" 38 #include "vm.h" 39 #include "cmap.h" 40 #include "dkbad.h" 41 #include "ioctl.h" 42 #include "uio.h" 43 #include "syslog.h" 44 45 #include "../vax/dkio.h" 46 #include "mbareg.h" 47 #include "mbavar.h" 48 #include "hpreg.h" 49 50 /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ 51 struct size { 52 daddr_t nblocks; 53 int cyloff; 54 } rp06_sizes[8] = { 55 15884, 0, /* A=cyl 0 thru 37 */ 56 33440, 38, /* B=cyl 38 thru 117 */ 57 340670, 0, /* C=cyl 0 thru 814 */ 58 15884, 118, /* D=cyl 118 thru 155 */ 59 55936, 156, /* E=cyl 156 thru 289 */ 60 219384, 290, /* F=cyl 290 thru 814 */ 61 291280, 118, /* G=cyl 118 thru 814 */ 62 0, 0, 63 }, rp05_sizes[8] = { 64 15884, 0, /* A=cyl 0 thru 37 */ 65 33440, 38, /* B=cyl 38 thru 117 */ 66 171798, 0, /* C=cyl 0 thru 410 */ 67 15884, 118, /* D=cyl 118 thru 155 */ 68 55936, 156, /* E=cyl 156 thru 289 */ 69 50512, 290, /* F=cyl 290 thru 410 */ 70 122408, 118, /* G=cyl 118 thru 410 */ 71 0, 0, 72 }, rm03_sizes[8] = { 73 15884, 0, /* A=cyl 0 thru 99 */ 74 33440, 100, /* B=cyl 100 thru 308 */ 75 131680, 0, /* C=cyl 0 thru 822 */ 76 15884, 309, /* D=cyl 309 thru 408 */ 77 55936, 409, /* E=cyl 409 thru 758 */ 78 10144, 759, /* F=cyl 759 thru 822 */ 79 82144, 309, /* G=cyl 309 thru 822 */ 80 0, 0, 81 }, rm05_sizes[8] = { 82 15884, 0, /* A=cyl 0 thru 26 */ 83 33440, 27, /* B=cyl 27 thru 81 */ 84 500384, 0, /* C=cyl 0 thru 822 */ 85 15884, 562, /* D=cyl 562 thru 588 */ 86 55936, 589, /* E=cyl 589 thru 680 */ 87 86240, 681, /* F=cyl 681 thru 822 */ 88 158592, 562, /* G=cyl 562 thru 822 */ 89 291346, 82, /* H=cyl 82 thru 561 */ 90 }, rm80_sizes[8] = { 91 15884, 0, /* A=cyl 0 thru 36 */ 92 33440, 37, /* B=cyl 37 thru 114 */ 93 242606, 0, /* C=cyl 0 thru 558 */ 94 15884, 115, /* D=cyl 115 thru 151 */ 95 55936, 152, /* E=cyl 152 thru 280 */ 96 120559, 281, /* F=cyl 281 thru 558 */ 97 192603, 115, /* G=cyl 115 thru 558 */ 98 0, 0, 99 }, rp07_sizes[8] = { 100 15884, 0, /* A=cyl 0 thru 9 */ 101 66880, 10, /* B=cyl 10 thru 51 */ 102 1008000, 0, /* C=cyl 0 thru 629 */ 103 15884, 235, /* D=cyl 235 thru 244 */ 104 307200, 245, /* E=cyl 245 thru 436 */ 105 308650, 437, /* F=cyl 437 thru 629 */ 106 631850, 235, /* G=cyl 235 thru 629 */ 107 291346, 52, /* H=cyl 52 thru 234 */ 108 }, cdc9775_sizes[8] = { 109 15884, 0, /* A=cyl 0 thru 12 */ 110 66880, 13, /* B=cyl 13 thru 65 */ 111 1077760, 0, /* C=cyl 0 thru 841 */ 112 15884, 294, /* D=cyl 294 thru 306 */ 113 307200, 307, /* E=cyl 307 thru 546 */ 114 377440, 547, /* F=cyl 547 thru 841 */ 115 701280, 294, /* G=cyl 294 thru 841 */ 116 291346, 66, /* H=cyl 66 thru 293 */ 117 }, cdc9730_sizes[8] = { 118 15884, 0, /* A=cyl 0 thru 49 */ 119 33440, 50, /* B=cyl 50 thru 154 */ 120 263360, 0, /* C=cyl 0 thru 822 */ 121 15884, 155, /* D=cyl 155 thru 204 */ 122 55936, 205, /* E=cyl 205 thru 379 */ 123 141664, 380, /* F=cyl 380 thru 822 */ 124 213664, 155, /* G=cyl 155 thru 822 */ 125 0, 0, 126 }, capricorn_sizes[8] = { 127 15884, 0, /* A=cyl 0 thru 31 */ 128 33440, 32, /* B=cyl 32 thru 97 */ 129 524288, 0, /* C=cyl 0 thru 1023 */ 130 15884, 668, /* D=cyl 668 thru 699 */ 131 55936, 700, /* E=cyl 700 thru 809 */ 132 109472, 810, /* F=cyl 810 thru 1023 */ 133 182176, 668, /* G=cyl 668 thru 1023 */ 134 291346, 98, /* H=cyl 98 thru 667 */ 135 }, eagle_sizes[8] = { 136 15884, 0, /* A=cyl 0 thru 16 */ 137 66880, 17, /* B=cyl 17 thru 86 */ 138 808320, 0, /* C=cyl 0 thru 841 */ 139 15884, 391, /* D=cyl 391 thru 407 */ 140 307200, 408, /* E=cyl 408 thru 727 */ 141 109296, 728, /* F=cyl 728 thru 841 */ 142 432816, 391, /* G=cyl 391 thru 841 */ 143 291346, 87, /* H=cyl 87 thru 390 */ 144 }, ampex_sizes[8] = { 145 15884, 0, /* A=cyl 0 thru 26 */ 146 33440, 27, /* B=cyl 27 thru 81 */ 147 495520, 0, /* C=cyl 0 thru 814 */ 148 15884, 562, /* D=cyl 562 thru 588 */ 149 55936, 589, /* E=cyl 589 thru 680 */ 150 81312, 681, /* F=cyl 681 thru 814 */ 151 153664, 562, /* G=cyl 562 thru 814 */ 152 291346, 82, /* H=cyl 82 thru 561 */ 153 }; 154 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ 155 156 /* 157 * Table for converting Massbus drive types into 158 * indices into the partition tables. Slots are 159 * left for those drives devined from other means 160 * (e.g. SI, AMPEX, etc.). 161 */ 162 short hptypes[] = { 163 #define HPDT_RM03 0 164 MBDT_RM03, 165 #define HPDT_RM05 1 166 MBDT_RM05, 167 #define HPDT_RP06 2 168 MBDT_RP06, 169 #define HPDT_RM80 3 170 MBDT_RM80, 171 #define HPDT_RP04 4 172 MBDT_RP04, 173 #define HPDT_RP05 5 174 MBDT_RP05, 175 #define HPDT_RP07 6 176 MBDT_RP07, 177 #define HPDT_ML11A 7 178 MBDT_ML11A, 179 #define HPDT_ML11B 8 180 MBDT_ML11B, 181 #define HPDT_9775 9 182 -1, 183 #define HPDT_9730 10 184 -1, 185 #define HPDT_CAPRICORN 11 186 -1, 187 #define HPDT_EAGLE 12 188 -1, 189 #define HPDT_9300 13 190 -1, 191 #define HPDT_RM02 14 192 MBDT_RM02, /* beware, actually capricorn or eagle */ 193 0 194 }; 195 struct mba_device *hpinfo[NHP]; 196 int hpattach(),hpustart(),hpstart(),hpdtint(); 197 struct mba_driver hpdriver = 198 { hpattach, 0, hpustart, hpstart, hpdtint, 0, 199 hptypes, "hp", 0, hpinfo }; 200 201 /* 202 * These variable are all measured in sectors. 203 * Sdist is how much to "lead" in the search for a desired sector 204 * (i.e. if want N, search for N-sdist.) 205 * Maxdist and mindist define the region right before our desired sector within 206 * which we don't bother searching. We don't search when we are already less 207 * then maxdist and more than mindist sectors "before" our desired sector. 208 * Maxdist should be >= sdist. 209 * 210 * Beware, sdist, mindist and maxdist are not well tuned 211 * for many of the drives listed in this table. 212 * Try patching things with something i/o intensive 213 * running and watch iostat. 214 */ 215 struct hpst { 216 short nsect; /* # sectors/track */ 217 short ntrak; /* # tracks/cylinder */ 218 short nspc; /* # sector/cylinders */ 219 short ncyl; /* # cylinders */ 220 struct size *sizes; /* partition tables */ 221 short sdist; /* seek distance metric */ 222 short maxdist; /* boundaries of non-searched area */ 223 short mindist; /* preceding the target sector */ 224 } hpst[] = { 225 { 32, 5, 32*5, 823, rm03_sizes, 7, 4, 1 }, /* RM03 */ 226 { 32, 19, 32*19, 823, rm05_sizes, 7, 4, 1 }, /* RM05 */ 227 { 22,19, 22*19, 815, rp06_sizes, 7, 4, 1 }, /* RP06 */ 228 { 31, 14, 31*14, 559, rm80_sizes, 7, 4, 1 }, /* RM80 */ 229 { 22, 19, 22*19, 411, rp05_sizes, 7, 4, 1 }, /* RP04 */ 230 { 22, 19, 22*19, 411, rp05_sizes, 7, 4, 1 }, /* RP05 */ 231 { 50, 32, 50*32, 630, rp07_sizes, 15, 8, 3 }, /* RP07 */ 232 { 1, 1, 1, 1, 0, 0, 0, 0 }, /* ML11A */ 233 { 1, 1, 1, 1, 0, 0, 0, 0 }, /* ML11B */ 234 { 32, 40, 32*40, 843, cdc9775_sizes, 7, 4, 1 }, /* 9775 */ 235 { 32, 10, 32*10, 823, cdc9730_sizes, 7, 4, 1 }, /* 9730 */ 236 { 32, 16, 32*16, 1024, capricorn_sizes,10,4, 3 }, /* Capricorn */ 237 { 48, 20, 48*20, 842, eagle_sizes, 15, 8, 3 }, /* EAGLE */ 238 { 32, 19, 32*19, 815, ampex_sizes, 7, 4, 1 }, /* 9300 */ 239 }; 240 241 u_char hp_offset[16] = { 242 HPOF_P400, HPOF_M400, HPOF_P400, HPOF_M400, 243 HPOF_P800, HPOF_M800, HPOF_P800, HPOF_M800, 244 HPOF_P1200, HPOF_M1200, HPOF_P1200, HPOF_M1200, 245 0, 0, 0, 0, 246 }; 247 248 struct buf rhpbuf[NHP]; 249 struct buf bhpbuf[NHP]; 250 struct dkbad hpbad[NHP]; 251 252 struct hpsoftc { 253 u_char sc_hpinit; /* drive initialized */ 254 u_char sc_recal; /* recalibrate state */ 255 u_char sc_hdr; /* next i/o includes header */ 256 u_char sc_doseeks; /* perform explicit seeks */ 257 daddr_t sc_mlsize; /* ML11 size */ 258 int sc_pgdone; /* amount sucessfully transfered */ 259 daddr_t sc_badbn; /* replacement block number */ 260 } hpsoftc[NHP]; 261 262 #define b_cylin b_resid 263 264 /* #define ML11 0 to remove ML11 support */ 265 #define ML11 (hptypes[mi->mi_type] == MBDT_ML11A) 266 #define RP06 (hptypes[mi->mi_type] <= MBDT_RP06) 267 #define RM80 (hptypes[mi->mi_type] == MBDT_RM80) 268 269 #define MASKREG(reg) ((reg)&0xffff) 270 #define HPWAIT(mi, addr) (((addr)->hpds & HPDS_DRY) || hpwait(mi)) 271 272 #ifdef INTRLVE 273 daddr_t dkblock(); 274 #endif 275 276 /*ARGSUSED*/ 277 hpattach(mi, slave) 278 register struct mba_device *mi; 279 { 280 281 mi->mi_type = hpmaptype(mi); 282 if (!ML11 && mi->mi_dk >= 0) { 283 struct hpst *st = &hpst[mi->mi_type]; 284 285 dk_mspw[mi->mi_dk] = 1.0 / 60 / (st->nsect * 256); 286 } 287 } 288 289 /* 290 * Map apparent MASSBUS drive type into manufacturer 291 * specific configuration. For SI controllers this is done 292 * based on codes in the serial number register. For 293 * EMULEX controllers, the track and sector attributes are 294 * used when the drive type is an RM02 (not supported by DEC). 295 */ 296 hpmaptype(mi) 297 register struct mba_device *mi; 298 { 299 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 300 register int type = mi->mi_type; 301 302 /* 303 * Model-byte processing for SI controllers. 304 * NB: Only deals with RM03 and RM05 emulations. 305 */ 306 if (type == HPDT_RM03 || type == HPDT_RM05) { 307 int hpsn = hpaddr->hpsn; 308 309 if ((hpsn & SIMB_LU) != mi->mi_drive) 310 return (type); 311 switch ((hpsn & SIMB_MB) & ~(SIMB_S6|SIRM03|SIRM05)) { 312 313 case SI9775D: 314 printf("hp%d: 9775 (direct)\n", mi->mi_unit); 315 type = HPDT_9775; 316 break; 317 318 case SI9730D: 319 printf("hp%d: 9730 (direct)\n", mi->mi_unit); 320 type = HPDT_9730; 321 break; 322 323 /* 324 * Beware, since the only SI controller we 325 * have has a 9300 instead of a 9766, we map the 326 * drive type into the 9300. This means that 327 * on a 9766 you lose the last 8 cylinders (argh). 328 */ 329 case SI9766: 330 printf("hp%d: 9300\n", mi->mi_unit); 331 type = HPDT_9300; 332 break; 333 334 case SI9762: 335 printf("hp%d: 9762\n", mi->mi_unit); 336 type = HPDT_RM03; 337 break; 338 339 case SICAPD: 340 printf("hp%d: capricorn\n", mi->mi_unit); 341 type = HPDT_CAPRICORN; 342 break; 343 344 case SI9751D: 345 printf("hp%d: eagle\n", mi->mi_unit); 346 type = HPDT_EAGLE; 347 break; 348 } 349 return (type); 350 } 351 352 /* 353 * EMULEX SC750 or SC780. Poke the holding register. 354 */ 355 if (type == HPDT_RM02) { 356 int ntracks, nsectors; 357 358 hpaddr->hpof = HPOF_FMT22; 359 mbclrattn(mi); 360 hpaddr->hpcs1 = HP_NOP; 361 hpaddr->hphr = HPHR_MAXTRAK; 362 ntracks = MASKREG(hpaddr->hphr) + 1; 363 if (ntracks == 16) { 364 printf("hp%d: capricorn\n", mi->mi_unit); 365 type = HPDT_CAPRICORN; 366 goto done; 367 } 368 if (ntracks == 19) { 369 printf("hp%d: 9300\n", mi->mi_unit); 370 type = HPDT_9300; 371 goto done; 372 } 373 hpaddr->hpcs1 = HP_NOP; 374 hpaddr->hphr = HPHR_MAXSECT; 375 nsectors = MASKREG(hpaddr->hphr) + 1; 376 if (ntracks == 20 && nsectors == 48) { 377 type = HPDT_EAGLE; 378 printf("hp%d: eagle\n", mi->mi_unit); 379 goto done; 380 } 381 printf("hp%d: ntracks %d, nsectors %d: unknown device\n", 382 mi->mi_unit, ntracks, nsectors); 383 done: 384 hpaddr->hpcs1 = HP_DCLR|HP_GO; 385 mbclrattn(mi); /* conservative */ 386 return (type); 387 } 388 389 /* 390 * Map all ML11's to the same type. Also calculate 391 * transfer rates based on device characteristics. 392 */ 393 if (type == HPDT_ML11A || type == HPDT_ML11B) { 394 register struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 395 register int trt; 396 397 sc->sc_mlsize = hpaddr->hpmr & HPMR_SZ; 398 if ((hpaddr->hpmr & HPMR_ARRTYP) == 0) 399 sc->sc_mlsize >>= 2; 400 if (mi->mi_dk >= 0) { 401 trt = (hpaddr->hpmr & HPMR_TRT) >> 8; 402 dk_mspw[mi->mi_dk] = 1.0 / (1<<(20-trt)); 403 } 404 type = HPDT_ML11A; 405 } 406 return (type); 407 } 408 409 hpopen(dev) 410 dev_t dev; 411 { 412 register int unit = minor(dev) >> 3; 413 register struct mba_device *mi; 414 415 if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0) 416 return (ENXIO); 417 return (0); 418 } 419 420 hpstrategy(bp) 421 register struct buf *bp; 422 { 423 register struct mba_device *mi; 424 register struct hpst *st; 425 register int unit; 426 long sz, bn; 427 int xunit = minor(bp->b_dev) & 07; 428 int s; 429 430 sz = bp->b_bcount; 431 sz = (sz+511) >> 9; 432 unit = dkunit(bp); 433 if (unit >= NHP) 434 goto bad; 435 mi = hpinfo[unit]; 436 if (mi == 0 || mi->mi_alive == 0) 437 goto bad; 438 st = &hpst[mi->mi_type]; 439 if (ML11) { 440 struct hpsoftc *sc = &hpsoftc[unit]; 441 442 if (bp->b_blkno < 0 || 443 dkblock(bp)+sz > sc->sc_mlsize) 444 goto bad; 445 bp->b_cylin = 0; 446 } else { 447 if (bp->b_blkno < 0 || 448 (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) 449 goto bad; 450 bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; 451 } 452 s = spl5(); 453 disksort(&mi->mi_tab, bp); 454 if (mi->mi_tab.b_active == 0) 455 mbustart(mi); 456 splx(s); 457 return; 458 459 bad: 460 bp->b_flags |= B_ERROR; 461 iodone(bp); 462 return; 463 } 464 465 hpustart(mi) 466 register struct mba_device *mi; 467 { 468 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 469 register struct buf *bp = mi->mi_tab.b_actf; 470 register struct hpst *st; 471 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 472 daddr_t bn; 473 int sn, tn, dist; 474 475 st = &hpst[mi->mi_type]; 476 hpaddr->hpcs1 = 0; 477 if ((hpaddr->hpcs1&HP_DVA) == 0) 478 return (MBU_BUSY); 479 if ((hpaddr->hpds & HPDS_VV) == 0 || !sc->sc_hpinit) { 480 struct buf *bbp = &bhpbuf[mi->mi_unit]; 481 482 sc->sc_hpinit = 1; 483 hpaddr->hpcs1 = HP_DCLR|HP_GO; 484 if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive)) 485 printf("DCLR attn\n"); 486 hpaddr->hpcs1 = HP_PRESET|HP_GO; 487 if (!ML11) 488 hpaddr->hpof = HPOF_FMT22; 489 mbclrattn(mi); 490 if (!ML11) { 491 bbp->b_flags = B_READ|B_BUSY; 492 bbp->b_dev = bp->b_dev; 493 bbp->b_bcount = 512; 494 bbp->b_un.b_addr = (caddr_t)&hpbad[mi->mi_unit]; 495 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 496 bbp->b_cylin = st->ncyl - 1; 497 mi->mi_tab.b_actf = bbp; 498 bbp->av_forw = bp; 499 bp = bbp; 500 } 501 } 502 if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1) 503 return (MBU_DODATA); 504 if (ML11) 505 return (MBU_DODATA); 506 if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY) 507 return (MBU_DODATA); 508 bn = dkblock(bp); 509 sn = bn % st->nspc; 510 tn = sn / st->nsect; 511 sn = sn % st->nsect; 512 if (bp->b_cylin == MASKREG(hpaddr->hpdc)) { 513 if (sc->sc_doseeks) 514 return (MBU_DODATA); 515 dist = sn - (MASKREG(hpaddr->hpla) >> 6) - 1; 516 if (dist < 0) 517 dist += st->nsect; 518 if (dist > st->maxdist || dist < st->mindist) 519 return (MBU_DODATA); 520 } else 521 hpaddr->hpdc = bp->b_cylin; 522 if (sc->sc_doseeks) 523 hpaddr->hpcs1 = HP_SEEK|HP_GO; 524 else { 525 sn = (sn + st->nsect - st->sdist) % st->nsect; 526 hpaddr->hpda = (tn << 8) + sn; 527 hpaddr->hpcs1 = HP_SEARCH|HP_GO; 528 } 529 return (MBU_STARTED); 530 } 531 532 hpstart(mi) 533 register struct mba_device *mi; 534 { 535 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 536 register struct buf *bp = mi->mi_tab.b_actf; 537 register struct hpst *st = &hpst[mi->mi_type]; 538 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 539 daddr_t bn; 540 int sn, tn; 541 542 if (bp->b_flags & B_BAD) 543 bn = sc->sc_badbn; 544 else 545 bn = dkblock(bp) + sc->sc_pgdone; 546 if (ML11) 547 hpaddr->hpda = bn; 548 else { 549 sn = bn%st->nspc; 550 tn = sn/st->nsect; 551 sn %= st->nsect; 552 hpaddr->hpdc = bp->b_cylin; 553 hpaddr->hpda = (tn << 8) + sn; 554 } 555 if (sc->sc_hdr) { 556 if (bp->b_flags & B_READ) 557 return (HP_RHDR|HP_GO); 558 else 559 return (HP_WHDR|HP_GO); 560 } 561 return (0); 562 } 563 564 hpdtint(mi, mbsr) 565 register struct mba_device *mi; 566 int mbsr; 567 { 568 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 569 register struct buf *bp = mi->mi_tab.b_actf; 570 register struct hpst *st; 571 register int er1, er2; 572 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 573 int retry = 0, i; 574 575 st = &hpst[mi->mi_type]; 576 if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) { 577 er1 = hpaddr->hper1; 578 er2 = hpaddr->hper2; 579 if (HPWAIT(mi, hpaddr) == 0) 580 goto hard; 581 #ifdef HPDEBUG 582 if (hpdebug) { 583 int dc = hpaddr->hpdc, da = hpaddr->hpda; 584 585 printf("hperr: bp %x cyl %d blk %d pgdone %d as %o ", 586 bp, bp->b_cylin, bp->b_blkno, sc->sc_pgdone, 587 hpaddr->hpas&0xff); 588 printf("dc %x da %x\n",MASKREG(dc), MASKREG(da)); 589 printf("errcnt %d ", mi->mi_tab.b_errcnt); 590 printf("mbsr=%b ", mbsr, mbsr_bits); 591 printf("er1=%b er2=%b\n", MASKREG(er1), HPER1_BITS, 592 MASKREG(er2), HPER2_BITS); 593 DELAY(1000000); 594 } 595 #endif 596 if (er1 & HPER1_HCRC) { 597 er1 &= ~(HPER1_HCE|HPER1_FER); 598 er2 &= ~HPER2_BSE; 599 } 600 if (er1 & HPER1_WLE) { 601 log(KERN_RECOV, "hp%d: write locked\n", dkunit(bp)); 602 bp->b_flags |= B_ERROR; 603 } else if (sc->sc_hdr) { 604 goto hard; 605 } else if (RM80 && er2&HPER2_SSE) { 606 (void) hpecc(mi, SSE); 607 return (MBD_RESTARTED); 608 } else if ((er2 & HPER2_BSE) && !ML11) { 609 if (hpecc(mi, BSE)) 610 return (MBD_RESTARTED); 611 goto hard; 612 } else if (MASKREG(er1) == HPER1_FER && RP06) { 613 if (hpecc(mi, BSE)) 614 return (MBD_RESTARTED); 615 goto hard; 616 } else if ((er1 & (HPER1_DCK | HPER1_ECH)) == HPER1_DCK && 617 mi->mi_tab.b_errcnt > 7) { 618 if (hpecc(mi, ECC)) 619 return (MBD_RESTARTED); 620 /* else done */ 621 } else if (++mi->mi_tab.b_errcnt > 27 || 622 (ML11 && mi->mi_tab.b_errcnt > 15) || 623 mbsr & MBSR_HARD || 624 er1 & HPER1_HARD || 625 (!ML11 && (er2 & HPER2_HARD))) { 626 /* 627 * HCRC means the header is screwed up and the sector 628 * might well exist in the bad sector table, 629 * better check.... 630 */ 631 if ((er1 & HPER1_HCRC) && !ML11 && hpecc(mi, BSE)) 632 return (MBD_RESTARTED); 633 hard: 634 if (bp->b_flags & B_BAD) 635 bp->b_blkno = sc->sc_badbn; 636 else { 637 bp->b_blkno = dkblock(bp) + btop(bp->b_bcount - 638 MASKREG(-mi->mi_mba->mba_bcr)); 639 if (er1 & (HPER1_DCK | HPER1_ECH)) 640 bp->b_blkno--; 641 } 642 harderr(bp, "hp"); 643 if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC))) 644 printf("mbsr=%b ", mbsr, mbsr_bits); 645 printf("er1=%b er2=%b", 646 MASKREG(hpaddr->hper1), HPER1_BITS, 647 MASKREG(hpaddr->hper2), HPER2_BITS); 648 if (hpaddr->hpmr) 649 printf(" mr=%o", MASKREG(hpaddr->hpmr)); 650 if (hpaddr->hpmr2) 651 printf(" mr2=%o", MASKREG(hpaddr->hpmr2)); 652 if (sc->sc_hdr) 653 printf(" (hdr i/o)"); 654 printf("\n"); 655 bp->b_flags |= B_ERROR; 656 bp->b_flags &= ~B_BAD; 657 } else 658 retry = 1; 659 hpaddr->hpcs1 = HP_DCLR|HP_GO; 660 if ((mi->mi_tab.b_errcnt & 07) == 4) { 661 hpaddr->hpcs1 = HP_RECAL|HP_GO; 662 sc->sc_recal = 1; 663 return (MBD_RESTARTED); 664 } 665 } 666 #ifdef HPDEBUG 667 else 668 if (hpdebug && sc->sc_recal) { 669 printf("recal %d ", sc->sc_recal); 670 printf("errcnt %d\n", mi->mi_tab.b_errcnt); 671 printf("mbsr=%b ", mbsr, mbsr_bits); 672 printf("er1=%b er2=%b\n", 673 hpaddr->hper1, HPER1_BITS, 674 hpaddr->hper2, HPER2_BITS); 675 } 676 #endif 677 HPWAIT(mi, hpaddr); 678 switch (sc->sc_recal) { 679 680 case 1: 681 hpaddr->hpdc = bp->b_cylin; 682 hpaddr->hpcs1 = HP_SEEK|HP_GO; 683 sc->sc_recal++; 684 return (MBD_RESTARTED); 685 case 2: 686 retry = 1; 687 break; 688 } 689 sc->sc_recal = 0; 690 if (retry) { 691 if (mi->mi_tab.b_errcnt >= 16 && (bp->b_flags & B_READ)) { 692 hpaddr->hpof = 693 hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22; 694 hpaddr->hpcs1 = HP_OFFSET|HP_GO; 695 HPWAIT(mi, hpaddr); 696 mbclrattn(mi); 697 } 698 return (MBD_RETRY); 699 } 700 if (mi->mi_tab.b_errcnt >= 16) { 701 /* 702 * This is fast and occurs rarely; we don't 703 * bother with interrupts. 704 */ 705 hpaddr->hpcs1 = HP_RTC|HP_GO; 706 HPWAIT(mi, hpaddr); 707 mbclrattn(mi); 708 } 709 if ((bp->b_flags & B_BAD) && hpecc(mi, CONT)) 710 return (MBD_RESTARTED); 711 sc->sc_hdr = 0; 712 sc->sc_pgdone = 0; 713 bp->b_resid = MASKREG(-mi->mi_mba->mba_bcr); 714 if (!ML11) { 715 hpaddr->hpof = HPOF_FMT22; 716 hpaddr->hpcs1 = HP_RELEASE|HP_GO; 717 } 718 return (MBD_DONE); 719 } 720 721 /* 722 * Wait (for a bit) for a drive to come ready; 723 * returns nonzero on success. 724 */ 725 hpwait(mi) 726 register struct mba_device *mi; 727 { 728 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 729 register i = 100000; 730 731 while ((hpaddr->hpds & HPDS_DRY) == 0 && --i) 732 DELAY(10); 733 if (i == 0) 734 printf("hp%d: intr, not ready\n", mi->mi_unit); 735 return (i); 736 } 737 738 hpread(dev, uio) 739 dev_t dev; 740 struct uio *uio; 741 { 742 register int unit = minor(dev) >> 3; 743 744 if (unit >= NHP) 745 return (ENXIO); 746 return (physio(hpstrategy, &rhpbuf[unit], dev, B_READ, minphys, uio)); 747 } 748 749 hpwrite(dev, uio) 750 dev_t dev; 751 struct uio *uio; 752 { 753 register int unit = minor(dev) >> 3; 754 755 if (unit >= NHP) 756 return (ENXIO); 757 return (physio(hpstrategy, &rhpbuf[unit], dev, B_WRITE, minphys, uio)); 758 } 759 760 /*ARGSUSED*/ 761 hpioctl(dev, cmd, data, flag) 762 dev_t dev; 763 int cmd; 764 caddr_t data; 765 int flag; 766 { 767 768 switch (cmd) { 769 770 case DKIOCHDR: /* do header read/write */ 771 hpsoftc[minor(dev) >> 3].sc_hdr = 1; 772 return (0); 773 774 default: 775 return (ENXIO); 776 } 777 } 778 779 hpecc(mi, flag) 780 register struct mba_device *mi; 781 int flag; 782 { 783 register struct mba_regs *mbp = mi->mi_mba; 784 register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv; 785 register struct buf *bp = mi->mi_tab.b_actf; 786 register struct hpst *st = &hpst[mi->mi_type]; 787 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 788 int npf, o; 789 int bn, cn, tn, sn; 790 int bcr; 791 792 bcr = MASKREG(-mbp->mba_bcr); 793 if (bp->b_flags & B_BAD) 794 npf = bp->b_error; 795 else 796 npf = btop(bp->b_bcount - bcr); 797 o = (int)bp->b_un.b_addr & PGOFSET; 798 bn = dkblock(bp); 799 cn = bp->b_cylin; 800 sn = bn%(st->nspc) + npf; 801 tn = sn/st->nsect; 802 sn %= st->nsect; 803 cn += tn/st->ntrak; 804 tn %= st->ntrak; 805 switch (flag) { 806 case ECC: { 807 register int i; 808 caddr_t addr; 809 struct pte mpte; 810 int bit, byte, mask; 811 812 npf--; /* because block in error is previous block */ 813 bn--; 814 if (bp->b_flags & B_BAD) 815 bn = sc->sc_badbn; 816 log(KERN_RECOV, "hp%d%c: soft ecc sn%d\n", dkunit(bp), 817 'a'+(minor(bp->b_dev)&07), bn); 818 mask = MASKREG(rp->hpec2); 819 i = MASKREG(rp->hpec1) - 1; /* -1 makes 0 origin */ 820 bit = i&07; 821 i = (i&~07)>>3; 822 byte = i + o; 823 while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { 824 mpte = mbp->mba_map[npf+btop(byte)]; 825 addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET); 826 putmemc(addr, getmemc(addr)^(mask<<bit)); 827 byte++; 828 i++; 829 bit -= 8; 830 } 831 if (bcr == 0) 832 return (0); 833 npf++; 834 break; 835 } 836 837 case SSE: 838 rp->hpof |= HPOF_SSEI; 839 if (bp->b_flags & B_BAD) { 840 bn = sc->sc_badbn; 841 goto fixregs; 842 } 843 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 844 break; 845 846 case BSE: 847 if (rp->hpof & HPOF_SSEI) 848 sn++; 849 #ifdef HPBDEBUG 850 if (hpbdebug) 851 printf("hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 852 #endif 853 if (bp->b_flags & B_BAD) 854 return (0); 855 if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0) 856 return (0); 857 bp->b_flags |= B_BAD; 858 bp->b_error = npf + 1; 859 rp->hpof &= ~HPOF_SSEI; 860 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 861 sc->sc_badbn = bn; 862 fixregs: 863 cn = bn/st->nspc; 864 sn = bn%st->nspc; 865 tn = sn/st->nsect; 866 sn %= st->nsect; 867 mbp->mba_bcr = -512; 868 #ifdef HPBDEBUG 869 if (hpbdebug) 870 printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); 871 #endif 872 break; 873 874 case CONT: 875 #ifdef HPBDEBUG 876 if (hpbdebug) 877 printf("hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 878 #endif 879 bp->b_flags &= ~B_BAD; 880 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 881 if (MASKREG(mbp->mba_bcr) == 0) 882 return (0); 883 break; 884 } 885 rp->hpcs1 = HP_DCLR|HP_GO; 886 if (rp->hpof & HPOF_SSEI) 887 sn++; 888 rp->hpdc = cn; 889 rp->hpda = (tn<<8) + sn; 890 mbp->mba_sr = -1; 891 mbp->mba_var = (int)ptob(npf) + o; 892 rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO; 893 mi->mi_tab.b_errcnt = 0; /* error has been corrected */ 894 sc->sc_pgdone = npf; 895 return (1); 896 } 897 898 #define DBSIZE 20 899 900 hpdump(dev) 901 dev_t dev; 902 { 903 register struct mba_device *mi; 904 register struct mba_regs *mba; 905 struct hpdevice *hpaddr; 906 char *start; 907 int num, unit; 908 register struct hpst *st; 909 910 num = maxfree; 911 start = 0; 912 unit = minor(dev) >> 3; 913 if (unit >= NHP) 914 return (ENXIO); 915 #define phys(a,b) ((b)((int)(a)&0x7fffffff)) 916 mi = phys(hpinfo[unit],struct mba_device *); 917 if (mi == 0 || mi->mi_alive == 0) 918 return (ENXIO); 919 mba = phys(mi->mi_hd, struct mba_hd *)->mh_physmba; 920 mba->mba_cr = MBCR_INIT; 921 hpaddr = (struct hpdevice *)&mba->mba_drv[mi->mi_drive]; 922 if ((hpaddr->hpds & HPDS_VV) == 0) { 923 hpaddr->hpcs1 = HP_DCLR|HP_GO; 924 hpaddr->hpcs1 = HP_PRESET|HP_GO; 925 hpaddr->hpof = HPOF_FMT22; 926 } 927 st = &hpst[mi->mi_type]; 928 if (dumplo < 0 || dumplo + num >= st->sizes[minor(dev)&07].nblocks) 929 return (EINVAL); 930 while (num > 0) { 931 register struct pte *hpte = mba->mba_map; 932 register int i; 933 int blk, cn, sn, tn; 934 daddr_t bn; 935 936 blk = num > DBSIZE ? DBSIZE : num; 937 bn = dumplo + btop(start); 938 cn = bn/st->nspc + st->sizes[minor(dev)&07].cyloff; 939 sn = bn%st->nspc; 940 tn = sn/st->nsect; 941 sn = sn%st->nsect; 942 hpaddr->hpdc = cn; 943 hpaddr->hpda = (tn << 8) + sn; 944 for (i = 0; i < blk; i++) 945 *(int *)hpte++ = (btop(start)+i) | PG_V; 946 mba->mba_sr = -1; 947 mba->mba_bcr = -(blk*NBPG); 948 mba->mba_var = 0; 949 hpaddr->hpcs1 = HP_WCOM | HP_GO; 950 while ((hpaddr->hpds & HPDS_DRY) == 0) 951 DELAY(10); 952 if (hpaddr->hpds&HPDS_ERR) 953 return (EIO); 954 start += blk*NBPG; 955 num -= blk; 956 } 957 return (0); 958 } 959 960 hpsize(dev) 961 dev_t dev; 962 { 963 int unit = minor(dev) >> 3; 964 struct mba_device *mi; 965 struct hpst *st; 966 967 if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0) 968 return (-1); 969 st = &hpst[mi->mi_type]; 970 return ((int)st->sizes[minor(dev) & 07].nblocks); 971 } 972 #endif 973